And charles f



(No Model.) v.

E. Z. COLLINGS- 8v C. IE'. PIKE.

RBPRXGBRATOR.

No. 311,814. vPatented Peb. 3, 1885.

PI//T/VJESSES.` INVENTORQ (9 .XWM

A TTORNEY,

`EDWARD z. conm iINrrnn Srarns artnr rricn.

NGS, OF CAMDEN, NEW` JERSEY, AND CHARLES F. PIKE,

CF PHILADELPHIA, PENNSYLVANIA.

REFRIGERATQR.

SPECIFICATION 'forming part of Letters Patent No. 311,814, dated February 3, 1885.

Application filed May 15, 1884. (No model.)

To all whom it may concern/f Be it known that we, EDWARD Z. CoLLINGs, residing at Camden, in the county of Camden and State of New Jersey, and CHARLES F. PIKE, residing at Philadelphia, inthe county of Philadelphia and State of Pennsylvania, citizens of the United States, have invented certain new and useful Improvements in Refrigerators, of which the following is a specification, reference being had therein to the accompanying drawing, which is a longitudinal vertical section showing a refrigerator embodying our improvements.

Our invention has relation to that form of refrigerator wherein the reduction of temperature is effected by conveying the drip from the ice-box through a series of troughs located within the refrigerator and arranged one above the other adjacent to one of its walls. Heretofore these troughs,whether alternately inclined to one another or otherwise arranged,

have been formed with smooth, unbroken, or straight bottoms, to cause the drip as it ows into a trough to almost instantly pass out of the same into the succeeding trough, and so on throughout the series-or, in other words, the drip has a comparatively rapid or swift passage or flow through the troughs or therefrigerator, and the temperature in the latter is not reduced to as low a degree as it would be if the drip had its iiow lessened or traveled more slowly through the refrigerator.

i scribed and claimed.

In the drawing, A represents the refrigerator, which may be of any suitable configuration and construction, and be stationary or portable. It has a lid, a, and an ice-box, a', provided with an outlet, a2, in line with a trough or pan, b, of a series, B, of the same.

Said ice-box may be of any desired construction and suitably arranged. The end trough of the series B leads into an outlet, C, of any suitable construction. Said troughs may be of any appropriate form in cross section; but

we prefer to makethenr either square or oblong and provide them with end pipes or spouts, b', as shown.

To retard the dow of the drip through or along the troughs,we corrugate their bottoms or make them wave like in outline. These corrugations may be regular, as shown at cv, so that a portion of the drip will always be retained in the troughs, or irregularI or stepshape, as indicated at y. In the latter case none of the drip is retained in the trough; but its corrugated bottom increases the extent of surface for the drip to pass over, and thereby retards its iiow. These corrugations or wavelines are placed transversely across the trough,

The ow of the drip being retarded, less drip 8O and less ice to provide the drip is required, so that we can obtain better refrigerant results with a reduced amount of ice, or at less cost, than has heretofore been accomplished with the above-described form of refrigerators. The troughs may be alternately iuclined to one another, or arranged parallel to each other, or as otherwise desired.

1. In refrigerators having an ice-box and a 9o series of troughs for conduct-ing the drip from the ice box through the refrigerator, the method herein described for increasing the refrigerant results,\vhich consists of retarding the iiow of drip by causing it to pass over corrugations placed transversely to the line or direction of the flow, substantially as set forth. 2. The refrigerator A, having ice-box a and It is there- 7 5 Vlines of which are placed transversely to the having corrugated or uneven bottom b', With transverse eorrugations, and the outlet for the water between one of the eorrugations4 and 15 the end of the trough, substantially as shown, and for the purpose set forth.

In testimony whereof We affix our signatures in vpresence of two witnesses.

EDWARD Z. COLLIN GS. OHAS. F. PIKE. Witnesses:

S. J. VAN STAVOREN, CHAs. F. VAN HORN.

a series of inclined troughs, b, provided with corrugated or Wave-like bottoms, the corrugations or wave lines of which are placed transversely to the line or direction of oW, substantially as shown and described.

3. The combination, with a refrigerator, of the inclined troughs b, having uneven or corrugated bottoms b, the corrugations or Wavei line or direction of the ow, substantially as shown and described.

4. A- conducting or drip-flow pan or trough 

